Rotary cultivator



(No Model.)

B. T. COLEMAN & G. HOWARD.

ROTARY OULTIVATOR.

No. 366,928. Patented July 19, 1887.

Inge/ ia]? I f 'i. I

UNITED STATES PATENT OFFI E.

BENJAMIN T. COLEMAN AND GLEM HOVARD, OF HUBBARD, TEXAS.

ROTARY C U LTlVATO R.

SPECIFICATION forming part of Letters Patent No. 366,928, dated July 19,1887.

Application filed May 14, 1887.

T0 aZZ whom, it may concern.-

Be it known that we, BENJAMIN COLEMAN and OLEM HO\VARD, citizens of theUnited States, residing at Hubbard, in the county of Hill and State ofTexas, have invented certain new and useful Improvements in RotaryCultivators; and we do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

The special objects of the invention are to lessen the weight on tongueand the'down draft while the power is applied more directly to theplows. By this means we are enabled to make the whole frame very light,also, to provide convenient means of adj usting the altitude of thewheels with respect to the plows, so as to regulate the depth of thelatter, and also to hold them out of the ground; also, to obtainsuitable means for adjusting the plows at any desirable angle to theline of travel, and to throw greater or less soil to or from the plants,the latter being done by the driver without leaving his seat.

Figure 1 of the drawings is a bottom plan View; Fig. 2, a sideelevation, and Fig. 3 a longitudinal vertical section.

In the drawings, A represents the frame, having the vertical grooves aa, in which work the sides b b of the axle B. The axle is formed ofthese sides, the superposed integral crosspiece Z), and the journals 1)I)", on which turn the ground-wheels G O. The axle part b is attached bya flexible or pivoted connection to the lever D, which is front-pivotedto the framestud a, elbowed, and provided with a spring fingerpawl onone side, so as to work in a rack, E, and hold the wheels at any desiredheight.

F are the rotary plows, which I preferably use in sets of three, withtwo sets to a plowcultivator. Each set has a common axle, whichisjournaled horizontally in bearings of the standard G, which has avertical arm,

Serial No. 238,195. (No model.)

swiveled in the frame, and is turned horizontally by the arm H, pivotedthereto and to the lever I. The latter is fulcrumed ati to the frame A,and likethe lever D is brought within reach of the driver as he occupieshis seat. This lever I is also provided with a springpawl which works ina rack, J, to fasten the plows at any desired angle. Instead of bringingthe additional weight of the double and single trees upon the pole, andconsequently upon the necks of the horses, we middle-pivot a crossbar,K, on the projection a", which is made integral with frame A, andconnect its ends by downward arms k k with the frame projection a, thearms 7; being made with several holes by which the draft may be placedhigher or lower by changing the hooks L, which are on the singletrees M.These arms k k are end-pivoted to each of the frame projections a a, soas to move with the cross bar or doubletree K.

K is the usual seat.

Our plows F are solid disks which work parallel at any desired angle,and bring the soil into fine tilth. The cultivator straddles a row ofplants, and one set of plows cultivates on each side thereof, as onehorse walks also on each side. This enables one man to work up theground very rapidly and in an admirable manner. i

(Vhilll we claim as new, and desire to protect by Letters Patent, is

In a rotary cultivator, the combination, with two or more disk-plows onthe same axle, of the standard G, having the vertical arm 9, swiveled toturn horizontally, the pivoted arm H, and the hand-lever I, whereby thedriver may turn the plows at any angle to the line of direction of thecultivator, as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of twowitnesses.

BENJ. T. COLEMAN. GLEM HO\VARD.

\Vitnesses:

\V. B. GANEY,

E. E. BAKER.

Lil

